Setting Heating Limit (Eco); Heat Limit Function - Siemens IQHeat User Manual

7.5.1

Setting Heating limit (ECO)

7.5.2

Heat limit function

The temperature that is used as input data for the heating curve is called "use outside temp." The used outside
temperature consists of a combination of the calculated (dampened by the construction time constant, for
example 20 hours) and the current outside temperature. For quick changes it is appropriate to respond in part
directly, without waiting for the full change of the estimated outside temperature.
NOTE: Setting the Heating limit (ECO) requires logging
at Service level.
1. Press Info to access the Main index.
2. Now select Commissioning > Plant settings >
Heating circuit1 or just choose Heating circuit in the
Main Index menu.
3. Select Heating limit (ECO) and press OK.
4. Set the desired value, -20...0°C
NOTE: Activating the heat limit function requires login
at Service level.
1. Press Info to access the Main index.
2. Now select Commissioning > Plant Config >
Heating circuit(s).
3. Select the ECO function and press OK.
4. Select preferred mode and press OK.
Parameter: Relates to
None The ECO mode is not
enabled, the heat is not shut
off during the summer
Filtered Average value forms the
outside temperature
Fil+Act The average value of the
dampened outside
temperature and the current
outside temperature
5. Return to Plant Config.
6. Select Restart, press OK.
7. Select Execute and press OK.
8. The new settings take effect after restart.
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